נגישות
menu      
חיפוש מתקדם
תחביר
חפש...
הספר "אוצר וולקני"
אודות
תנאי שימוש
ניהול
קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Pollen dispensers (inserts) increase fruit set and yield in almonds under some commercial conditions
Year:
2000
Source of publication :
Journal of Apicultural Research
Authors :
דג, ארנון
;
.
Volume :
39
Co-Authors:
Dag, A., Department of Plant Science, George S Wise Fac. of Life Sciences, Tel Aviv University, PO Box 39040, Tel Aviv 69978, Israel
Weinbaum, S.A., Department of Pomology, University of California, One Shields Avenue, Davis, CA 95616-8584, United States
Thorp, R.W., Department of Entomology, University of California, One Shields Avenue, Davis, CA 95616-8584, United States
Eisikowitch, D., Department of Plant Science, George S Wise Fac. of Life Sciences, Tel Aviv University, PO Box 39040, Tel Aviv 69978, Israel
Facilitators :
From page:
117
To page:
123
(
Total pages:
7
)
Abstract:
Most commercial almond cultivars are self-incompatible and flowering occurs in early spring when weather conditions are often unfavourable for pollinator flight. Thus, inadequate cross-pollination frequently limits almond yield. We evaluated the effect of pollen dispensers (inserts), fixed onto honey bee hives, on almond fruit set and yield in orchards differing in planting design, i.e. varying in the arrangement and proximity of the main cultivar and pollinizers. Pollen dispensers did not increase fruit-set percentage and yield in the 1 : 1 : 1 planting design in which (a), pollinizer rows were planted on either side of the main cultivar rows; and (b), bloom overlap was good between the pollinizers (cv. Carmel and Monterey) and the main cultivar Nonpareil. In contrast, pollen dispensers increased fruit-set percentage and yield in the 1 : 2 : 1 (one pollinizer row : two Nonpareil rows : one pollinizer row) planting design in which the branches of the two Nonpareil rows facing each other were more distant from effective pollinizers, and bloom overlap between Nonpareil and one of its pollinizers (Mission) was suboptimal. The increase in fruit set and yield, attributable to the use of pollen dispensers occurred primarily on Nonpareil branches facing the adjacent Nonpareil row. The impact of pollen dispensers was significant at 50 m but not at 150 m from the hive. Although pollen dispensers have been used for more than 60 years, this is the first large-scale study with replication, conducted under commercial conditions that demonstrates their benefit when cross-pollination is limited.
Note:
Related Files :
Almond
Apis mellifera
Cross-pollination
fruit set
Hive entrance fittings
Honey bees
Pollen dispensers
pollination
Pollinizers
Prunus dulcis
עוד תגיות
תוכן קשור
More details
DOI :
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
25911
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:18
Scientific Publication
Pollen dispensers (inserts) increase fruit set and yield in almonds under some commercial conditions
39
Dag, A., Department of Plant Science, George S Wise Fac. of Life Sciences, Tel Aviv University, PO Box 39040, Tel Aviv 69978, Israel
Weinbaum, S.A., Department of Pomology, University of California, One Shields Avenue, Davis, CA 95616-8584, United States
Thorp, R.W., Department of Entomology, University of California, One Shields Avenue, Davis, CA 95616-8584, United States
Eisikowitch, D., Department of Plant Science, George S Wise Fac. of Life Sciences, Tel Aviv University, PO Box 39040, Tel Aviv 69978, Israel
Pollen dispensers (inserts) increase fruit set and yield in almonds under some commercial conditions
Most commercial almond cultivars are self-incompatible and flowering occurs in early spring when weather conditions are often unfavourable for pollinator flight. Thus, inadequate cross-pollination frequently limits almond yield. We evaluated the effect of pollen dispensers (inserts), fixed onto honey bee hives, on almond fruit set and yield in orchards differing in planting design, i.e. varying in the arrangement and proximity of the main cultivar and pollinizers. Pollen dispensers did not increase fruit-set percentage and yield in the 1 : 1 : 1 planting design in which (a), pollinizer rows were planted on either side of the main cultivar rows; and (b), bloom overlap was good between the pollinizers (cv. Carmel and Monterey) and the main cultivar Nonpareil. In contrast, pollen dispensers increased fruit-set percentage and yield in the 1 : 2 : 1 (one pollinizer row : two Nonpareil rows : one pollinizer row) planting design in which the branches of the two Nonpareil rows facing each other were more distant from effective pollinizers, and bloom overlap between Nonpareil and one of its pollinizers (Mission) was suboptimal. The increase in fruit set and yield, attributable to the use of pollen dispensers occurred primarily on Nonpareil branches facing the adjacent Nonpareil row. The impact of pollen dispensers was significant at 50 m but not at 150 m from the hive. Although pollen dispensers have been used for more than 60 years, this is the first large-scale study with replication, conducted under commercial conditions that demonstrates their benefit when cross-pollination is limited.
Scientific Publication
You may also be interested in